﻿#region Copyright(c) 2006 ZO, All right reserved.
// -----------------------------------------------------------------------------
// Copyright(c) 2006 ZO, All right reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   1.  Redistribution of source code must retain the above copyright notice,
//       this list of conditions and the following disclaimer.
//   2.  Redistribution in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//   3.  The name of the author may not be used to endorse or promote products
//       derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// -----------------------------------------------------------------------------
#endregion


#region Using directives

using ZO.SmartCore.Helpers;
using ZO.SmartCore.Xml;

#endregion

namespace ZO.SmartCore.Protocols.XMPP.SASL.Core
{
    /// <summary>
    /// SASL Base Mechanism
    /// </summary>
    public class Mechanism : Element
    {

        #region Constructors
        /// <summary>
        /// Initializes a new instance of the <see cref="Mechanism"/> class.
        /// </summary>
        public Mechanism() : base("mechanism", "", "") { }

        /// <summary>
        /// Initializes a new instance of the <see cref="Mechanism"/> class with specified mechanism.
        /// </summary>
        /// <param name="mechanismtype">The mechanismtype.</param>
        public Mechanism(MechanismType mechanismtype)
            : this()
        {
            this.Type = mechanismtype;
        }   // Authentication


        /// <summary>
        /// Initializes a new instance of the <see cref="Mechanism"/> class.
        /// </summary>
        /// <param name="name">Name of the Mechanism.</param>
        public Mechanism(string name)
            : this()
        {
            this.Type = GetMechanismType(name); 
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="Mechanism"/> class with specified mechanism.
        /// </summary>
        /// <param name="mechanism">The mechanism type.</param>
        public Mechanism(Mechanism mechanism)
            : this()
        {
            if (mechanism == null)
            {
                return;
            }
            this.Type = mechanism.Type;
        }   // Authentication

        #endregion

        #region Destructor

        #endregion

        #region Fields


        #endregion

        #region Events

        #endregion

        #region Operators

        #endregion

        #region Properties

        /// <summary>
        /// Get The Mechansim Name of the Authentication, which is the name of the Mechansim object;
        /// </summary>
        public string MechanismName
        {
            get
            {
                return ReflectionHelper.GetDescription(this.Type);
            }
            // get
            // set
        }

        /// <summary>
        /// Get or Set The Mechansim Type of the Authentication, which is the name of the Mechansim object;
        /// </summary>
        /// <value>The type of the mechanism.</value>
        public MechanismType Type
        {
            get { return GetMechanismType(this.Value); }
            set
            {
               this.Value = ReflectionHelper.GetDescription(value);
            }
        }
        #endregion


        /// <summary>
        /// Gets the type of the mechanism by specified name.
        /// </summary>
        /// <param name="name">The name.</param>
        /// <returns></returns>
        private static MechanismType GetMechanismType(string name)
        {
            if (name == "ANONYMOUS") return MechanismType.Anonymous;

            if (name == "PLAIN") return MechanismType.Plain;

            if (name == "DIGEST-MD5") return MechanismType.DigestMD5;

            if (name == "X-GOOGLE-TOKEN") return MechanismType.XGoogleToken;

            return MechanismType.None;
        }
        #region Methods

        #endregion
    }
}
